Reduce image size to 20KB

Compress Image to 20KB

Reduce an image to under 20KB right in your browser. Ideal for exam-form photos, signatures and small profile pictures.

Private processing No signup

Drop your image here

or choose a file from your device — processed locally, nothing is uploaded

JPG · PNG · WEBP

Your images stay on your device.

How small does it need to be?

Your result is saved as a JPG, the format almost every upload form accepts. We search for the best quality that fits your limit, and only shrink the dimensions if quality alone can't get there.

Why 20KB comes up so often

20KB is one of the most searched limits in the world. Online exam, recruitment and scholarship forms in many countries ask for a passport-style photo or signature at or below 20KB.

How FitImage reaches 20KB

FitImage targets your limit directly: it tries several quality levels and picks the best one that fits under 20KB, reducing pixel dimensions only when it has to.

Common uses for 20KB

Passport-style photo fields with a 20KB cap
Scanned signature uploads
Small profile pictures for portals and apps
Thumbnail fields in registration forms

Tip

If the form lists both a size in KB and a size in pixels, resize to the pixel size first with the image resizer, then compress here to land under the KB limit.

Frequently asked questions

How do I compress an image to 20KB?

Drop your photo in, keep “Under 20 KB” selected and press Compress. The result is built in your browser, so the photo is never uploaded.

Why does the form still say my file is too big?

Some portals count in KiB or require an exact minimum. Choose a slightly lower custom target such as 18 KB to leave room.

Does it work for signatures?

Yes. Photograph the signature on white paper in good light, crop it, then compress it to 20KB.